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fetch vertices manually if needed

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This commit is contained in:
Samuliak 2024-10-01 17:38:14 +02:00
parent a3bfde80b0
commit 94e8ed5a46
8 changed files with 215 additions and 149 deletions
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136
src/Cafe/HW/Latte/Renderer/Metal/MetalPipelineCache.cpp
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@ -326,76 +326,81 @@ MTL::RenderPipelineState* MetalPipelineCache::GetRenderPipelineState(const Latte
if (pipeline)
return pipeline;
// Vertex descriptor
MTL::VertexDescriptor* vertexDescriptor = MTL::VertexDescriptor::alloc()->init();
for (auto& bufferGroup : fetchShader->bufferGroups)
{
std::optional<LatteConst::VertexFetchType2> fetchType;
uint32 minBufferStride = 0;
for (sint32 j = 0; j < bufferGroup.attribCount; ++j)
{
auto& attr = bufferGroup.attrib[j];
uint32 semanticId = vertexShader->resourceMapping.attributeMapping[attr.semanticId];
if (semanticId == (uint32)-1)
continue; // attribute not used?
auto attribute = vertexDescriptor->attributes()->object(semanticId);
attribute->setOffset(attr.offset);
attribute->setBufferIndex(GET_MTL_VERTEX_BUFFER_INDEX(attr.attributeBufferIndex));
attribute->setFormat(GetMtlVertexFormat(attr.format));
minBufferStride = std::max(minBufferStride, attr.offset + GetMtlVertexFormatSize(attr.format));
if (fetchType.has_value())
cemu_assert_debug(fetchType == attr.fetchType);
else
fetchType = attr.fetchType;
if (attr.fetchType == LatteConst::INSTANCE_DATA)
{
cemu_assert_debug(attr.aluDivisor == 1); // other divisor not yet supported
}
}
uint32 bufferIndex = bufferGroup.attributeBufferIndex;
uint32 bufferBaseRegisterIndex = mmSQ_VTX_ATTRIBUTE_BLOCK_START + bufferIndex * 7;
uint32 bufferStride = (lcr.GetRawView()[bufferBaseRegisterIndex + 2] >> 11) & 0xFFFF;
auto layout = vertexDescriptor->layouts()->object(GET_MTL_VERTEX_BUFFER_INDEX(bufferIndex));
if (bufferStride == 0)
{
// Buffer stride cannot be zero, let's use the minimum stride
bufferStride = minBufferStride;
// Additionally, constant vertex function must be used
layout->setStepFunction(MTL::VertexStepFunctionConstant);
layout->setStepRate(0);
}
else
{
if (!fetchType.has_value() || fetchType == LatteConst::VertexFetchType2::VERTEX_DATA)
layout->setStepFunction(MTL::VertexStepFunctionPerVertex);
else if (fetchType == LatteConst::VertexFetchType2::INSTANCE_DATA)
layout->setStepFunction(MTL::VertexStepFunctionPerInstance);
else
{
debug_printf("unimplemented vertex fetch type %u\n", (uint32)fetchType.value());
cemu_assert(false);
}
}
bufferStride = Align(bufferStride, 4);
layout->setStride(bufferStride);
}
auto vertexShaderMtl = static_cast<RendererShaderMtl*>(vertexShader->shader);
// Render pipeline state
MTL::RenderPipelineDescriptor* desc = MTL::RenderPipelineDescriptor::alloc()->init();
desc->setVertexFunction(vertexShaderMtl->GetFunction());
// TODO: don't always set the vertex descriptor?
desc->setVertexDescriptor(vertexDescriptor);
// Vertex descriptor
if (!fetchShader->mtlFetchVertexManually)
{
MTL::VertexDescriptor* vertexDescriptor = MTL::VertexDescriptor::alloc()->init();
for (auto& bufferGroup : fetchShader->bufferGroups)
{
std::optional<LatteConst::VertexFetchType2> fetchType;
uint32 minBufferStride = 0;
for (sint32 j = 0; j < bufferGroup.attribCount; ++j)
{
auto& attr = bufferGroup.attrib[j];
uint32 semanticId = vertexShader->resourceMapping.attributeMapping[attr.semanticId];
if (semanticId == (uint32)-1)
continue; // attribute not used?
auto attribute = vertexDescriptor->attributes()->object(semanticId);
attribute->setOffset(attr.offset);
attribute->setBufferIndex(GET_MTL_VERTEX_BUFFER_INDEX(attr.attributeBufferIndex));
attribute->setFormat(GetMtlVertexFormat(attr.format));
minBufferStride = std::max(minBufferStride, attr.offset + GetMtlVertexFormatSize(attr.format));
if (fetchType.has_value())
cemu_assert_debug(fetchType == attr.fetchType);
else
fetchType = attr.fetchType;
if (attr.fetchType == LatteConst::INSTANCE_DATA)
{
cemu_assert_debug(attr.aluDivisor == 1); // other divisor not yet supported
}
}
uint32 bufferIndex = bufferGroup.attributeBufferIndex;
uint32 bufferBaseRegisterIndex = mmSQ_VTX_ATTRIBUTE_BLOCK_START + bufferIndex * 7;
uint32 bufferStride = (lcr.GetRawView()[bufferBaseRegisterIndex + 2] >> 11) & 0xFFFF;
auto layout = vertexDescriptor->layouts()->object(GET_MTL_VERTEX_BUFFER_INDEX(bufferIndex));
if (bufferStride == 0)
{
// Buffer stride cannot be zero, let's use the minimum stride
bufferStride = minBufferStride;
// Additionally, constant vertex function must be used
layout->setStepFunction(MTL::VertexStepFunctionConstant);
layout->setStepRate(0);
}
else
{
if (!fetchType.has_value() || fetchType == LatteConst::VertexFetchType2::VERTEX_DATA)
layout->setStepFunction(MTL::VertexStepFunctionPerVertex);
else if (fetchType == LatteConst::VertexFetchType2::INSTANCE_DATA)
layout->setStepFunction(MTL::VertexStepFunctionPerInstance);
else
{
debug_printf("unimplemented vertex fetch type %u\n", (uint32)fetchType.value());
cemu_assert(false);
}
}
bufferStride = Align(bufferStride, 4);
layout->setStride(bufferStride);
}
// TODO: don't always set the vertex descriptor?
desc->setVertexDescriptor(vertexDescriptor);
vertexDescriptor->release();
}
SetFragmentState(desc, lastUsedFBO, activeFBO, pixelShader, lcr);
@ -448,7 +453,6 @@ MTL::RenderPipelineState* MetalPipelineCache::GetRenderPipelineState(const Latte
}
}
desc->release();
vertexDescriptor->release();
return pipeline;
}